package cn.xtits.xtp.interceptor;

//import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.interceptor.*;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;


/**
 * Created by ShengHaiJiang on 2017/9/13.
 */
@Aspect
//@Component 事务依然生效
@Configuration
public class TxAdviceInterceptor {

    private static final int TX_METHOD_TIMEOUT = 5;
    private static final String AOP_POINTCUT_EXPRESSION = "execution(* cn.xtits.iwms.service.impl.*.*(..))";

    @Autowired
    private PlatformTransactionManager transactionManager;

    @Bean
    public TransactionInterceptor txAdvice() {
        NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();
         /*只读事务，不做更新操作*/
        RuleBasedTransactionAttribute readOnlyTx = new RuleBasedTransactionAttribute();
        readOnlyTx.setReadOnly(true);
        readOnlyTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_NOT_SUPPORTED );
        /*当前存在事务就使用当前事务，当前不存在事务就创建一个新的事务*/
        RuleBasedTransactionAttribute requiredTx = new RuleBasedTransactionAttribute();
        requiredTx.setRollbackRules(
                Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
        requiredTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
        requiredTx.setTimeout(TX_METHOD_TIMEOUT);
        Map<String, TransactionAttribute> txMap = new HashMap<>();
        txMap.put("add*", requiredTx);
        txMap.put("save*", requiredTx);
        txMap.put("insert*", requiredTx);
        txMap.put("update*", requiredTx);
        txMap.put("delete*", requiredTx);
        txMap.put("get*", readOnlyTx);
        txMap.put("query*", readOnlyTx);
        source.setNameMap( txMap );
        TransactionInterceptor txAdvice = new TransactionInterceptor(transactionManager, source);
        return txAdvice;
    }

//    @Bean
//    public Advisor txAdviceAdvisor() {
//        AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
//        pointcut.setExpression(AOP_POINTCUT_EXPRESSION);
//        return new DefaultPointcutAdvisor(pointcut, txAdvice());
//        //return new DefaultPointcutAdvisor(pointcut, txAdvice);
//    }
}